I have a Series 1 Tivo with a 40GB disk in it that I havn't really used.  It doesn't have the Tuner mod, so it's only good for RCA/SVideo in & out.  It does have a Turbonet network card.

Looking for ~$300 or so.  It's got the Latest OzTivo image on there, pointing to the NZ server.  Groovy boxes for those wanting one.  Has IR Blaster + Remote and everything you need to get yourself setup.